N: When I go to gigs, the atmosphere is just amazing. I love seeing my dad and the band up on stage. Now I've got used to the fact that my dad's a rock star, I love it.
What's it like when your dad's on tour?
S: He was away a lot when I was younger. He hasn't been away much recently but they're about to start a world tour. It will be quite hard but I think it's been arranged so they won't be away for more than three weeks at a time.
N: I wish him good luck and tell him to have a great time, but at the same time I want him to come home. When he gets back, we give him a big hug. I'll text him and call him - I try to speak to him every day.
Are you musical?
S: I sing. I've seen how hard the music business can be. It can be off-putting, but it makes you more determined.
N: I play the drums, guitar and piano. I would love to be in a rock band. I like my dad's kind of music, but I also like the Red Hot Chili Peppers and Feeder.
What do you think about your dad's chart success?
S: They haven't been in the charts for so long. I've watched my dad working so hard and it's great that the single has done so well. A lot of people at school are going to know it's my dad. Hopefully they'll like it.
N: I'm absolutely chuffed. I told most of my friends at school and they couldn't believe it. I've played the CD to them and they really like it. I feel really proud of the band and proud to be a part of it all. Hopefully, a lot of new people will join the fan club now.
Sofi, 16, and Nial, 12, Oxfordshire
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